314 



INDEX. 



Crystals: dielectric constant 284 



elasticity 77-78 



expansion, cubical thermal .... 224 

 transmissibility for radiation . . . .194 



Current, absolute, measures 251 



Cyclic magnetization, energy losses in . . 294-296 



Declination, secular change of magnetic . . .110 



Demagnetizing factors for rods 289 



Density : air : values of h/Tto 160 



alcohol : aqueous ethyl 98 



methyl 98 



temperature variation . . .100 



alloys 89 



aqueous alcohol 98 



salt, acid, basic solutions . . 92 



chemical elements 8s, 91 



earth 108 



gases 91 



liquids 90 



mercury 97 



metals 8s 



organic compounds 21s 



water 95-96 



woods 87 



Dew points 156 



Dielectric constant: (specific inductive capacity) 



calibration, standards for . 283 



gases, atm. pressure . . 279 



pressure coef. . . 279 



temperature coef. . 280 



liquids 280 



temperature coef. . 282 



solids 283 



Dielectric strength: air: alternating potential . 248 

 steady potential . . . 248 



kerosene 250 



large spark-gaps . . . 249 

 pressure effect . . . 249 

 various materials . .250 

 Difference of potential: 



cells: double fluid 2S3 



secondary 2S3 



single fluid 2S3 



standard 2Si, 233 



storage 253 



contact: liquids-liquids in air . 254 

 metals in salt solutions 2S7 

 salts with liquids . . 2S4 

 solids-solids in air . . 256 



thermo-electric 258 



platinum couples 259 



Differential formulae 12 



Diffusion: aqueous solutions, water 136 



gases and vapors : coefficients . . . 138 



metals into metals 138 



vapors 137 



Dmusion integral 50 



Dip, magnetic 112 



secular change 112 



Dynamical equivalent of thermal unit .... 327 



e, value of 13 



e*. «""■ and their logarithms 43, 47 



log. e*, * from 10 to 30 44 



«*'• «~* . and their logarithms 45 



£ , £ *' , and their logarithms 46 



€ ' , C * '. and their logarithms .... 46 



" — r — , and their logarithms 41.42 



e'-t" .. .. 



i — 39. 40 



Earth: densities 108 



miscellaneous data 1 08 



Elasticity: crystals 77, 78 



moduli of rigidity 74 



modulus, Young's 75 



Electrical conductivity: alloys .... 266-268 

 alternating current, effect of 269 

 magnetic field, effect of . . 306 

 Electrical resistance: see Conductivity. 



metals and alloys, low temp. 264 

 ohm, various determinations 261 

 specific: metallic wires . . 262 



metals 263 



temperature effect, glass . 285 



Electricity, specific heat of 238 



Electric units, dimensional formula xxvi 



Electrochemical equivalents 270, 272 



silver 251 



Electrolytic conductivity: 272-278 



dilute solutions 272 



equivalent % . . . . 275-278 



ionic 278 



specific molecular .... 373 

 limiting values 274 

 temp. coef. . 274 



Electromagnetic system of units xxix 



Electromagnetic/electrostatic units = v ... 247 



Electromotive force: cells: double fluid • . . 253 



secondary .... 253 



single fluid . . . .252 



standard . . . 251, 253 



storage 253 



liquids-liquids in air . . 254 

 metals in salt solutions . . 257 

 salts with liquids .... 254 

 solids-solids in air . . . 256 

 thermo-electric .... 258 

 (platinum) . 259 



Elements: atomic weights 270 



boiling-points 210 



compressibility 76 



conductivity, thermal 199 



densities 85, 91 



electrochemical equivalents .... 270 



hardness 76 



melting-points 209 



resistance, electrical 263 



specific heats 228 



spectra (prominent lines) .... 170 



thermal conductivities 199 



expansion, linear .... 223 

 cubical, gases . . 226 



Elliptic integrals 57 



Emission of perfect radiator 238 



Equivalent, electro-chemical: elements . . . 270 



ionic 272 



silver 251 



Equivalent, mechanical, of heat 227 



Energy, data relating to solar 179 



Ethyl alcohol, specific gravity of aqueous ... 98 



Ettinghausen effect 307 



Expansion, thermal: cubical, crystals .... 224 



gases 226 



liquids .... 225 



solids 224 



linear, elements .... 222 



various 223 



perfect gas 162 



Explosives, composition, etc 203 



Exponential functions: e", e~*, their logs. . . 43, 47 

 log. e*. «= 10 to 30 . . 44 

 «*", e"" , their logs ... 45 



e^'.e-^'" "... 46 



C * ' ,€ ~* '• their logs. 46 



e'+x~' 



■ , their logs. . . 41, 42 



diffusion integral . . 

 hyperbolic sines . . 



cosines 

 logs, hyperbolic sines 



cosines 



39. 40 



. SO 

 . 39 

 . 41 

 . 40 



42 



probability integral . 47, 48 

 Eye, sensitiveness of, to radiation 178 



Fabry-Buisson, standard arc Fe wave-lengths . 170 



Factorials, n ! 38 



Fechner's law 178 



Field: earth's magnetic field, components of 110-115 

 magnetic, behavior of metals in . . 286-296 



resistance of metals in 306 



rotation of plane of polarization 297-304 

 thermo-, galvanometric effects . . 307 

 Films, thin: thickness, colors, tension of . 142, 143 ~ 



Fluorite: index of refraction 184 



Formulse, conversion: dynamic units 

 electric " . 

 fundamental . 

 geometric . , 



